Home / 120,567.40-180,814.16-83,366.53

Finding the Fourth Proportional to 120,567.40, 180,814.16 and 83,366.53

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Solution

The fourth proportional to 120,567.40, 180,814.16 and 83,366.53 is: 125,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,567.40 : 180,814.16 = 83,366.53 : x
  2. Step 2: Convert to fraction form
    120,567.40/180,814.16 = 83,366.53/x
  3. Step 3: Cross multiply
    120,567.40x = 180,814.16 × 83,366.53
  4. Step 4: Simplify right side
    120,567.40x = 15,073,849,867.53
  5. Step 5: Solve for x
    x = 15,073,849,867.53/120,567.40
  6. Step 6: Final answer
    x = 125,024.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.